节点文献
矩阵方程X+A*X-2A =I有对称正定解的充分必要条件(英文)
Necessary and Sufficient Conditions for the Existence of a Positive Definite Solution of the Matrix Equation X+A*X-2A=I
【摘要】 给出了矩阵方程X +A X-2 A =I有对称正定解的两个充分必要条件 ,它们在算法设计和理论分析上可能有一定的用途。根据这两个定理 ,当矩阵方程有对称正定解时 ,给出了系数矩阵A必须满足的条件 ,这些条件大部分都是很容易验证的。
【Abstract】 The matrix equation X+A*X -2A=I is studied.Some necessary and sufficient conditions for the existence of a positive definite solution of this equation are derived.Based on them,some properties of the coefficient matrix A are presented when the matrix equation has a positive definite solution.
【关键词】 非线性矩阵方程;
对称正定解;
充分必要条件;
【Key words】 nonlinear matrix equation; positive definite solution; necessary and sufficient condition;
【Key words】 nonlinear matrix equation; positive definite solution; necessary and sufficient condition;
- 【文献出处】 北京大学学报(自然科学版) ,Acta Scicentiarum Naturalum Universitis Pekinesis , 编辑部邮箱 ,2005年01期
- 【分类号】O151.21
- 【被引频次】15
- 【下载频次】119